bkietz commented on code in PR #14043:
URL: https://github.com/apache/arrow/pull/14043#discussion_r975673987
##########
cpp/src/arrow/compute/function.cc:
##########
@@ -167,6 +180,109 @@ const Kernel* DispatchExactImpl(const Function* func,
return nullptr;
}
+struct FunctionExecutorImpl : public FunctionExecutor {
+ FunctionExecutorImpl(std::vector<TypeHolder> in_types, const Kernel* kernel,
+ std::unique_ptr<detail::KernelExecutor> executor,
+ const Function& func)
+ : in_types(std::move(in_types)),
+ kernel(kernel),
+ kernel_ctx(),
+ executor(std::move(executor)),
+ func(func),
+ state(),
+ options(NULLPTR) {}
+ virtual ~FunctionExecutorImpl() {}
+
+ Status KernelInit(const FunctionOptions* options) {
+ if (!kernel_ctx) {
+ return Status::Invalid("function executor with null kernel context");
+ }
+ if (options == nullptr) {
+ RETURN_NOT_OK(CheckOptions(func, options));
+ options = func.default_options();
+ }
Review Comment:
Could we fold this into
```suggestion
RETURN_NOT_OK(CheckOptions(func, &options));
```
##########
cpp/src/arrow/compute/function.cc:
##########
@@ -167,6 +180,109 @@ const Kernel* DispatchExactImpl(const Function* func,
return nullptr;
}
+struct FunctionExecutorImpl : public FunctionExecutor {
+ FunctionExecutorImpl(std::vector<TypeHolder> in_types, const Kernel* kernel,
+ std::unique_ptr<detail::KernelExecutor> executor,
+ const Function& func)
+ : in_types(std::move(in_types)),
+ kernel(kernel),
+ kernel_ctx(),
+ executor(std::move(executor)),
+ func(func),
+ state(),
+ options(NULLPTR) {}
+ virtual ~FunctionExecutorImpl() {}
+
+ Status KernelInit(const FunctionOptions* options) {
+ if (!kernel_ctx) {
Review Comment:
KernelContext is a simple wrapper around an ExecContext, KernelState, and a
Kernel. I think it's not worthwhile to keep it by pointer and it'd be
preferable validate the members of the KernelContext instead- like checking if
KernelContext::exec_context is non null (or coercing to default_exec_context)
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